Sainsbury's is very sorry that someone at its Oxford store thought it was a good idea to display a bunch of 12 Years a Slave DVDs next to a mannequin presumably dressed to resemble Solomon Northup, wearing a torn-up shirt and black pants with a twig stuck in the pocket. Just in case you saw the movie and your takeaway… »5/21/14 3:00pm 5/21/14 3:00pm